JSON to Rust.

Pandia turns a JSON document into Rust struct definitions that derive Serialize and Deserialize. Fields use idiomatic snake_case, optional fields become Option<T>, and arrays become Vec<T> — ready to drop into a serde project.

Example

Input JSON:

{
  "id": 42,
  "name": "Ada",
  "active": true,
  "tags": ["admin", "early"]
}

Rust output:

use serde::{Deserialize, Serialize};

#[derive(Debug, Serialize, Deserialize)]
pub struct Root {
    pub id: i64,
    pub name: String,
    pub active: bool,
    pub tags: Vec<String>,
}

What you get

• Structs with #[derive(Serialize, Deserialize)] for serde.
• Optional fields inferred as Option<T>; arrays as Vec<T>.
• Idiomatic snake_case field names.
• Pandia itself is built in Rust — the generator is fast and deterministic.

It’s the same engine behind Pandia’s type generation — opinionated, deterministic, and built to run on files far too large for an online converter.

Frequently asked questions

How do I generate Rust structs from JSON?

Open the Types panel, choose Rust, and copy the serde-ready structs into your project.

Does it use serde?

Yes. The generated structs derive Serialize and Deserialize, so they work directly with serde_json.

Does it work offline and on large files?

Yes — generation is fully local with no upload, and Pandia handles multi-gigabyte JSON without freezing.

More converters: JSON to TypeScript · JSON to Go · JSON to Python · JSON to Zod · JSON to YAML · all tools · download.